That part might be temporarily dead, but the surrounding bermuda should spread back in. Is it a seeded variety of bermuda or a hybrid sod? If it is a sod you can buy a piece and set it back in.

If it dies let us know, us cool season grass folks are always looking for options to kill Bermuda.

Lol! I hate Bermuda too. But that's what the builders used in our subdivision here in North Georgia. Guess I'll have to replace the sod in that area.

When I was a kid my dad drained our swimming pool using siphon action and garden hoses. Turned out the hoses leaked at the fittings (as all hoses did in the 60s), and the pool water killed vast swaths of grass.